Sediment trap assemblages ― a methodological description

A short description is given of the theory and use of sediment traps in the context of fine sediment dynamics. The technical construction of the sediment trap device has been examined earlier. Sediment traps yield data on rates of sedimentation and provide a means of estimating redeposition and resuspension. Methods for distinguishing between primary and secondary material in the traps are surveyed. Examples from trap deployments in the Swedish Sankt Anna Archipelago are used to formulate a model approach that is designed to yield data on the coastal flux of fine material. (DBO)